Padlock Icon - Nokia 6250

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a - 29 May 2005 08:55 GMT

G'day,

Dunno if this has been addressed before, i am newbie.

From time to time i notice an icon on my nokia 6250, top left hand
corner, which resembles an unlocked padlock. Not entirely sure if it is
only there briefly on power up, or sometimes when a call / message is
sent / received. i have heard that it has something to do with the
encryption status, but am seeking further advice / knowledge of this
icon and its purpose / meaning.

TIA

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Michael - 29 May 2005 09:06 GMT

> G'day,
>
[quoted text clipped - 6 lines]
> encryption status, but am seeking further advice / knowledge of this
> icon and its purpose / meaning.

You are right.

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a - 29 May 2005 09:21 GMT

>>G'day,
>>
[quoted text clipped - 8 lines]
>
> You are right.

so then, meaning "what" about the encryption ? who / what controls
enabling / disabling encryption as shown by the icon appearing briefly
from time to time ?

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will kemp - 29 May 2005 10:22 GMT

>>>sent / received. i have heard that it has something to do with the
>>>encryption status, but am seeking further advice / knowledge of this
>>>icon and its purpose / meaning.

>> You are right.

> so then, meaning "what" about the encryption ?

what michael means is "you are right, you *are* seeking further advice /
knowlege of this icon..."!

will

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Jeremy Quirke - 30 May 2005 10:09 GMT

> G'day,
>
[quoted text clipped - 8 lines]
>
> TIA

I'm guessing you're on Telstra, whose network seems to send CIPHERING MODE
COMMAND at a later stage in connection establishment. The icon when
illuminated indicates that no ciphering is being applied to data being sent
over the radio link.

In this case, since it only flashes briefly, your call/SMS is still
encrypted (albeit quite weakly).

See http://www.gsm-security.net/gsm-security-papers.shtml for more
information.

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a - 31 May 2005 09:26 GMT

>>G'day,
>>
[quoted text clipped - 19 lines]
> See http://www.gsm-security.net/gsm-security-papers.shtml for more
> information.

Thanks JQ, very informative site, well worth the visit. FYI - i'm with
Voda. I haven't often seen the icon, just recently in a local hoyts
putting the phone to silent when i accidently turned it off then back on
again. tho, maybe a couple of years ago when with telstra, i saw it more
often.

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